locationmanager

问题 I'm not having any luck receiving any data from the GPS using the code below, and i'm not sure what I'm doing wrong, it seems like my code matches everything i see online. i'd like to eventually add this to a background service to log gps coordinates even when the activity isn't visible or if other apps are open and if the speed is greater than a certain defined amount, but at this point I can't even get any of the data to show up. i'm relatively new to android but i can't figure out what am

问题 I'm not having any luck receiving any data from the GPS using the code below, and i'm not sure what I'm doing wrong, it seems like my code matches everything i see online. i'd like to eventually add this to a background service to log gps coordinates even when the activity isn't visible or if other apps are open and if the speed is greater than a certain defined amount, but at this point I can't even get any of the data to show up. i'm relatively new to android but i can't figure out what am

问题 During researching I realized that there are different ways in Android to get the users location. First solution is by LocationManager and the second solution is FusedLocationProviderAPI, which is based on GooglePlay Services. In the internet I just could find tutorials & explanations of them separately. At work today somebody showed me that he is using LocationManager with Criterias that in the onLocationChanged-Method locations are received with the provider "fused". Does this mean that

问题 I am building an app that needs to send the user's location to a remote server (Pusher in this case). The goal is to update their location on a map in near real-time but only when they are on a job, otherwise the app will not need to track their location. I need the location updates to remain active if they leave the activity where they accepted the job (and therefore were placed on the map) and if they leave the app altogether. Once they have reached their destination, I wish to stop this

问题 Using xamarin for current location currentLocation example I used the above Link for getting current location latitude and longitude. In IOS 7 before upgrade to IOS 8 Its shows my current location latitude and longitude on both simulator and device.(Its looks strange for me in simulator for getting current location latitude and longitude). After upgrade to iOS 8 and run same code it give In simulator:(Turn on wifi no sim card location service App always.) Result: latitude = 37.785834.

问题 Is there a way to request location updates from a locationManager at specific intervan and to ignore minDistance? I've tried locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 3600 * 1000, 1, this) But in logs appears sometimes that location is updated in a few minutes, sometimes in a half of hour... Can this be done to update location at a fixed interval and to ignore distance? 回答1: You can use this schema. Create new Runnable which will be called every time, when you want

问题 What exactly the property locationmanager.distancefilter do? Does it determine how often the didUpdateTolocation method gets called?? 回答1: It filters out short moves. So if CL detects that the device moved 20 meters, but your distance filter is set to 30m you will not be notified. Once the position has moved enough to exceed your distance filter setting then you will get a didUpdateToLocation callback. It is very common for GPS position results to wander even when a device isn't moving. You

问题 I am trying to get my current location and get the driving directions to some destination. I am able to get my location and when I execute the code for the driving directions I get android.os.NetworkOnMainThreadException in the following line HttpResponse response = httpClient.execute(httpPost, localContext); Response is NULL. What do i do ? public Document getDocument(LatLng start, LatLng end, String mode) { String url = "http://maps.googleapis.com/maps/api/directions/xml?" + "origin=" +

问题 This is so weird. We all know that if <uses-sdk android:targetSdkVersion="23"/> is set to 23+, you must ask for runtime permissions besides declaring <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> in the manifest. This has been working with no problem for years. Now, The problem is that when I am setting targetSdkVersion to "26", the LocationManager is not working anymore! and throws this error: "gps" location provider requires ACCESS_FINE_LOCATION permission The

问题 This is the Code I use to get the current location: mgr = (LocationManager) getSystemService(LOCATION_SERVICE); Criteria criteria = new Criteria(); best = mgr.getBestProvider(criteria, true); if (best == null) { //ask user to enable atleast one of the Location Providers } else { Location location = mgr.getLastKnownLocation(best); //But sometimes it returns null } Almost everytime best = network But it's not providing the location sometimes. mgr.getLastKnownLocation(best) returns null Also: